import org.simantics.db.layer0.variable.VariableMap;
import org.simantics.db.layer0.variable.VariableMapImpl;
import org.simantics.db.layer0.variable.VariableNode;
import org.simantics.db.layer0.variable.VariableMap;
import org.simantics.db.layer0.variable.VariableMapImpl;
import org.simantics.db.layer0.variable.VariableNode;